Fix "Error parsing match history data"

[BennyExtreme]

It seems that Riot Games has again modified their APIs.

In this pull request I included the following things:

• Fix for the "Error parsing match history data" problem (Since 01/13/2021) [Modification of the file "app/main.py"]
• Fix for the "Error parsing match history data" problem (Since 01/21/2021) [Modification of the file "app/valApi.py"]
• I modified some "print" making them comments to make the console cleaner during normal use of the project [Modification of the file "app/main.py"]
• Modification of the file "README.md"
• Modification of the file "wsgi.py" [Users can now change the port]
• "Dockerfile" adjustment after changing "wsgi.py" file (Many thanks to @grasshide)

Looking forward to your reply, best regards.

[grasshide]

Thank you @BennyExtreme for the update and going the extra mile to create the pull request. I can confirm that it works :-) Since Docker requires the flask server to be serving to everybody, I had to adjust the Dockerfile: RUN sed -i 's/host="127.0.0.1", port=5000, debug=True/host="0.0.0.0", port=5000, debug=False/g' wsgi.py

[BennyExtreme]

Thank you @BennyExtreme for the update and going the extra mile to create the pull request. I can confirm that it works :-) Since Docker requires the flask server to be serving to everybody, I had to adjust the Dockerfile: RUN sed -i 's/host="127.0.0.1", port=5000, debug=True/host="0.0.0.0", port=5000, debug=False/g' wsgi.py

Thank you @grasshide for trying my fix and for giving me a feedback, I added a commit to the PR to fix the problem you reported. Best regards.